India is native of guar or cluster bean where it is used as a vegetable. From hundreds of years Guar has been used as vegetable in India. It is also used as a cattle food, and as a green manure crop in agriculture. Guar gum comes from the endosperm of the seed of the legume plant Cyamopsis tetragonoloba; an annual plant, grown in dry regions of India as a food crop for animals.more..